Ultra Low Temp Freezer DW -120℃~-150℃

Description: Ultra low temp freezer mainly used for scientific research, special materials of low-temperature test and preservation; freezing of red blood cells, white blood cells, skin, bacteria, semen, biological products, ocean products and electric.

Model	DW-A0W118S	DW-A0W258S	DW-A0W458S	DW-A0L398S	DW-A3W258S	DW-A3W458S	DW-A5W118S	DW-A5W258S
Temp.range	-50℃~-105℃
Inner volume	118L	258L	458L	398L	258L	458L	118L	258L
Inner dimension	500*400*560	780*500*600	1380*500*600	500*400*560	780*500*600	1380*500*660	500*400*560	780*500*600
Input power	650W		800W		1600W	2500W		3000W
Type	Vertical					Chest
Compressor	SECOp		Tecumseh			Dorin
Fan	EBM	EBM	EBM	EBM	EBM	EBM	EBM	EBM
Refrigeration technology	Using single compressor cascade technology, simple structure, low energy consumption, low failure rate
Refrigerant	Using single compressor cascade technology, simple structure, low energy consumption, low failure rate
Control system	LNEYA
Display	7- inch color touch screen
Temp. record	Real-time curve records of tank, ambient and set temperature,  18 months curve record, export to U disk ( in EXCEL format)
Lock	Standard equipped with electromagnetic lock and a padlock hole
Doors open records	Can allocate 6 group authorization, each group with independent user name and password, to ensure that each time it can record the user name and time of opening doors.
Dimension	1350*780 *1000	1600*890 *1100	2200*890 *1100	920*930 *1990	1600*890 *1100	2200*890 *1150	1350*780 *1050	1600*890 *1100
Power	220V 50HZ
Noise	58db			65db
Material	Inner SUS304, cold rolled steel case
Climate type	Natural
UPS	Standard machine with 24V 12AH control system spare power
Safety Protection	High and low pressure protection and display,  Electric leakage protection, Power outage alarm, ambient temperature monitoring, sensor fault alarm,control system UPS power

As a cryogenic storage equipment, the cryogenic refrigerator is widely used in fields like medical and health, scientific research, disease control, and inspection, etc. Since the birth of China's first ultra-low temperature refrigerator in 2006, China's ultra low temperature refrigerator has developed rapidly through the development of more than ten years, especially the rise of the biologic sample library. Many native low-temperature refrigeration brands have entered the field of ultra-low temperature refrigerators.  The brands in the market are quite a mixed bag, so here are two suggestions for you to choose cryogenic refrigerators from Guanya.

1. Selection for refrigeration mode: Double stage self-cascade refrigeration

The cooling mode is the core of the ultra-low-temperature refrigerator. Stability and long life are the most important. Double cascade refrigeration is a mature refrigeration mode recognized by the academic community. This refrigeration mode is adopted by almost all ultra-low-temperature brands at home and abroad. The two compressor high temperature and low-temperature respective division of labor, each operating under the best conditions, which makes the whole operation stable and extend the service life of the compressor.

2. Temperature uniformity: The simple numbers are not enough

Except the uniformity temperature number, we need to see the method of detection and whether it has the report of the Quality  Inspection Center. The most stringent detection method is stationing 20 points in the box.  The leading index of the industry is active about 7℃ at any point in a little box, which means that the range of variation is ±3.5 ℃. If the index beyond this, it is likely to be a registration test with only 4 test points and just take the average number of tests.

Contact Lneya for more.